Container With Most Water

Desicription

Given n non-negative integers a1, a2, …, an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a container, such that the container contains the most water.

Note: You may not slant the container and n is at least 2.

Solution

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class Solution {
public:
int maxArea(vector<int>& height) {
int res = -1;
int left = 0;
int right = height.size()-1;
while(left <= right){
res = max(res, min(height[left], height[right]) * (right - left));
if(height[left] <= height[right])
left++;
else
right--;
}
return res;
}
};